Continuous drawing apparatus for making window-glass.



W. W. W KEYES. ooxmluous unwise Arnnrrus ron mms wnmow omas. AULIOAIIOI FILED IA! il. 1012.

1 ,058,065.' .Patented Apr. 8, 1913.

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CONTINUOUS-DRAWING AIPBATUB FOB IAKING WINDOW GLASS.

APPLIOA'HOI HLBD lA! 8l, 1912.

Patented Apr. 8, 1913.

@ww/Ury@ 'UMTED ICE ikiirsslgqnfamxiiivnau, INDIANA.

' Jiffy". ,"iil'lK, e; "n CONTlNUOUS Fqnr nKING WINDOW-GLASS.

Lessons.

To allwhom. it may concern;

Be itknown that I,.WILL1AM America, 'residing county of Madison a'ndState' of Indiana; have invented certain new andusefiilfjlfiii# provements in Continuous Draviying'` "J rat-us for Making vWindow-Glass, oflwiiiich."

the following is aspeciiication, refereneelb'e-Q ing had therein to the aceompanyingdrawing. i f

This invention relates to a'- continuous glass drawin apparatus for making win dow glass, an the primarypbjectof m in -j vention is toprovideran apparatus lo the.

above type by which glass can beQentinuously drawn froma tanktol form a'h'ollow' as the cylinder is formed.

cylinder that can'becut into desired lengths' Another ob vide Au, glass a novel expansible gui e head that serves as a plug lfor the greater part of thedrawn cylinder, whereby a ressureof, air can be maintained in the cy inder to prevent eollapse of the same. l

A further ob'ect of'this invention isl to accomplish the a ove results by a mechanical construction that is durable, leasy to install, and operate and highly eflieieiit for the purposes for which it is intended.

With the above and other objects in view, the invention resides in a novel construction, combination and arrangement of parts to bel hereinafter specifically described and then claimed.

The principles of my invention are illus`- tinted in the drawings wherenz-g Figure 1 is a side elevation of the apparatus partly broken away and artly in section. Fig. 2 is an enlard ve ical sectional view of a combined gui e and plug. Fig. 8 is a horizontal sectional vieyv of thesame. Fig. 4 is a plan of the drawing mechanism. Fig. 5 is a lan of a cutting or fracturin ring, and Fig. 6 is a cross sectional Aview o the same,

Further describing my invention in detail with reference to the drawing, wherein like numerals` l denote4 corresponding throughout: 1 denotes a. lassiiiel in havin fan extension '2, t e top' of w ect of this invention is to pro-- rawing aparatus embodying- Mounts Iwe g tank y'e'onuecte iich'is provi ed with an opening. Thebottomy of the tank extensionhasafconicallshaped guide 4 d irectlyb'eneath the opening Bgandf .Patented Apr. 8,1913.

said guideihas a vertical o ening 5 extendfrom the' top ofthe gui e 4 to the bottom Karre, .a .citizen of the United-fStates of ,o t

"at Alexandrian itha..

lieextnsion 2. Arranged .below the extension 2 of the .tnnkjf are `vertical parallel standards or fgiiidesf and slidably mounted u on said guidesisa cross head 7. Mounte in said crossheadis the lower end of a stand pipe 8`-`that extends upwardly to the opening 5 of tlie guide 4 and through the `opening 3. The .lower end of the opening 5 has an annular seat 9 fora packing ring or closure 10, which surrounds the stand pipe 8 and closes the lowery end ofthe opening 5. The closure 10 is lretained upon the seat 9 by levers 11 fulcru'medin Ibeams 12, carried by the upper en ds of the guides 6 and assisting in supnrtingthe bottom of the melting tank 1." he outer ends of the levers 11 are profvidedwithweights 18 and by raising the weights 18 the c osure 10 can be released and removed.

,jThe'fstand pipe 8 is supported in a raised "or` elevated position by cables 14 that pass over' 'revoluble sheaves 15,l carried by the I-beams12. ATlie cables 14-"are attached to the crosshead-'7 and by manipulating said cables the pipe 8 can be raised and lowered.

The Aupper end of the standpipe 8 is provided wit a cap lohaving a circle opening 1.7 through wliicli extends the upper end of a pipe 18 that'is arranged longitudinally of the stand pi 8. The ower end of the pipe 18 extends t roufgh a cap 10 mounted upon the lower end o the stand pipe 8, and the pipe 18 is in communication with a suitable su ly of air under pressure.

xtending through the ca i 19 is a water sup ly`pipe 20 which exten s in proximity tot e cap 16 for supplying water to the interior 'of the stand pipe 8. Connected to the'cap 1i) is a water outlet pipe 21 and it is through the medium of the pipes Q0 and .21 that watercan be circulated in the stuud Vpipe 8 'for coolin the same and preventing .the pipes from fandextendingthrough said openings are *f loekln members-25 that are pivotally suppoi' tc 'Aby apertiiiedlug 26, carried by the The bearings 45 support azrev'oluble. tlexib l29, adJacent to the upper end thereof.

bottom plate 23. The locking-"members r25 have the upper ends thereof pivotally con nected to links 27e-ands`aid links lareI`- ally connected to a ysleeve 28 that is slidably mounted upon the"lo'wer end'of a rod 29, said sleeve being) retained in engagement withthe ro'd 29 y ai transverse in' 80'*ex tending through a the lower end of the rod 29. By elevating the rod 29,.the locking members 25 are shift-- ed to release the brackets 22,.,whereb ,theg bottom late 23 can be moved indepen ently of saidrackets. l. j

The bottom-plate 28 is provided with Leircumferent-ially arranged sets of apertured lugs 31 and pivotally connected to said lugee are an ularly disposed arms 32. These arms 'have tie upper ends thereof pivotally nected to apertured lu 33, carried ythe'I inner sides of a yielda le band -84, refer@ ably made of rubber. The arms`82, a 'acentl to the upper end thereof are provide with bearings 35 and pivotally connected to said bearings -are angularly disposed .links' 86 that are connected to apertured lugs 87, car-l ried b a sleeve 88 mounted upon the ro Connected to the inner side ,of thefygld' able band 34 is ayshield 89, made of as t l or other tire-proof material. The shield 88 has the lower edges thereof secured to theI bottom plate 23 and said shield snuglly fits aroundthe loc ng members 25 an the apertured lugs 88, said shield coperatng with the band 34 in forming a plug. Ar-l ranged upon the upper edges4 of the-shield 39 is a horizontal screen 40, preferably made of interwoven wire, said screen having openings providing clearance for the-links 36. The screen 40 lirevents matter that might accidentally fa thereon from interfering with 'the operation of the combined guide and plug.

The bottom plate 28 is provided with a safety pressure device that is in communica tion with the underside of the bottom plate. This safety device is generally designated 41 and is similar to the safety pressure-device disclosed in my complanion application filed under even date. T e device is adapted to relieve an excessive pressure beneath the bottom plate 28 and t e shield 89.

Arranged upon the melting tank 1 is a' frame work having converging supports 42 and mounted upon said supports are I- beams 43. The I-beams 48 are provided with housings 44 and slidably mounted in said housings are bearings 45, said bearings having v anti-frictional rollersl 46 that4 movably support the bearings-45I injsaidhousing'. e

shaft 47 and mount d upon sai "-"shaft are drawiugwlieelsor 'rol1ers.,48.." l ne1endrof the flexible. shaft 4T has. a-l small gear.' wheel v49 and meshing with saidwheelj is another slot provided't erefor-.in s

.compression spring tension 2 is a ring 44March 5, 1907.

guide iately u ion the rod 29 ted through the gear'wheel`50. The gar wheel 50 is driven from a suitable source of energy, for inlocated upon one of the SRPEorts'42. The earings 45 are provided with depending pins 51 and the housings 44 are provided with depending ins52. These pins are connected by coi ed compression spring 53, the object of which will presently appear. l l l rranged above the supports 42 are additionalsupports 54, each o which has an I- beam-55, a housing 56, a bearing 57 and a 58, `the elements 54 to 58 inclusive being similar to the elements 42 to45 inclusive and the element 53. The

bearings 57 are provided -witli revoluble conguide wheels'or rollers 59, and arranged upon said bearings is a cutting or fracturing device, best shown in Figs. 5 and 6. The cutting device comprises a sectional ring 60 havin the sections thereof suitably connecte together. The ring 60 is provided with a plurality of vertice resilient holders 61 for a cutting or fracturing wire 62. This wire can be charged with electricity orlieated foi`v` crackin and fracturing a piece of glass against w iich the wire is placed.

Located in the opening 3 of the vtank ex- 63 that controls the temperatures of the molten glass within the .melting tank 1, said ring being fully disclosed in the prior Patent #846,316, ranted The extension 2 of t ie .tank

also has an opening 64 whereby a flame of a burner 65 can be projected into the tank extension2 to maintain the molten glass therein in condition for drawing purposes.

In operation, it is necessary that the drawing head disclosed in my companion application filed under even date be resorted to, to start the cylinder whereby it can be continuously drawn. I will assume that the cylinder, designated 66, has been drawn to a point above the drawin wheels 48 and that said wheels are engagin the cylinder and moving the same upward y between the guide rollers 59. As soon as the cylinder 66 has been formed to that extent the combined guide head and plug is lowered into the cylinder from the up er end thereof and locked in en agement with the brackets 22. A cable can e resorted to for lowering the cylinder and immer eing released, the weight .o the rod and its appurteuaut arts is sufficient to expand the guide head,w iereby the band 34 will engage the inner walls of thecylinder 66. Air can then -be admitl ipe 18 and with the air of the pressure in t e lower part of the cylinderl 66,-said'eylinder can be continuously drawn... 'An excess pressure of air within the cylinder 66 is relieved through the safety pressure device 4l. The guide head and and plug into the llo lll

while the cylinder is being drawn and wi the drawing wheels 14 engaging the outer sides of the cylinder, t-he cylinder is raduall between the gui e whee s or rollers 59 that are held in engafgement with-the cylinder through the me ium of the compression spring 58. The springs 53 also retain the drawing wheels or rollers 48 in en ement with the cylinder whereby said cylin er can be elevated by the frictional contact of the wheels or rollers. After the c linder 66 has been drawn a sutiicient heig t above the guide rollers 59, the wire 62 can be employed for cutting the cylinder and for titting of the length thereof being removed.

From the foregoing it will be observed that I have devised an apparatus by which glass in a cylindrical form can be continuously drawn from a tank. Besides .makin provision for guiding and drawing a cy inder provision is made for maintaining an air pressure within the drawn portion of lsaid cylinder, also for cooling the standpipe which supports the detachable guide and plug head.

W iile in the drawings there is illustrated a preferred embodiment of my invention, it is to be understood that the structural elements are susceptible to such changes in the size, roportion and manner of assemblage as fal within the scope of the appended claims.

1. In a glass drawing apparatus, a melting tank, a stand pipe extending upwardly through said tank and in communication with a water su ply, an air su ply pi extending upwar y through sai stan ipe a combined expansible guide and plug hea detachabl connected to the u per end of .said stan (pipe, circumferentia ly arranged yeldable rawing rollers arranged above said tank and in proximity to said head,

plug remains stationary and guide rollers arranged above drawingv rollers.

2. In a glass drawing apparatus, a melting tank, a stand pipe extending upwardly through said tank and in communication with a water su ply, an air suppl pipe extending upwar y through sai and ipe a combined expansible guide and plug ea detachabl connected to the upper end of said stan dpipe, circumferentia ly arranged yieldable rawing rollers arranged above lsaid tank and in proximity to said head,

carried upwardly.

guide rollers arranged above said drawing rollers, and a cutting device supported above guide rollers.

3. In a continuous glass drawing apparatus, a glass tanka stand pipe extending upwardly through said tank, an air supp y pipe extending upwardly through said stand pipe, a combined expansible guide and plug ead .detachably connected to the upper end of said stand pipe, revoluble drawing rollers ieldably sup orted in proximity to said ead, and i e rollers arranged above said drawing ro 1ers.

4. In a continuous glass drawing apparatus, a meltin tank, a stand pipe extending through sai tank, a combined expansible guide and plug head detachably connected to the upper end of said stand pipe, revoluble drawing rollers yieldably supported in proximity to said head, guide rollers arran ed above said drawin rollers, and a cutting device arranged a ove said guide rollers.

5. In a continuous glass drawing apparatus, a meltin tank, a stand pi e exten ing upwardly rom said tank an in communication with a supply of water, an air supply pipe extending upwardly through said stand ipe, a combined expansible guide and plug ead detachably connected to the upper end of said stand pipe, revoluble drawing rollers yieldably sup orted adjacent to said head revoluble gui e rollers yieldably supporte above said drawing rollers, and a cutting device including a wire arranged above said side rollers.

6. In a continuous glass drawing apparatus, a meltin tank, a stand pipe extending through sai tank and capable of being lowered from said tank, pi es in communication with the lower end o said stand pipe and adapted to maintain a circulation of water therein, an air supply ipe extending upwardly through said stang pipe, an expansible lu carried by the upper end of said stan piie and adapted to seal a c 1- inder surroun ing said stand pipe, revolu le drawing rollers yieldably supported adiacent to said plu and guide rollers yie dabl supported a ove said drawing rollers.

n testimony whereof I aflix my signature in the presence of two wit esses.

WILLIAM W. KEYES. Witnesses:

Max H. SnoLovi'rz, K. H. BUTLER.

copies et this patent may be obtained ter an im each, by addressing the Commissioner et Patenti, Washington, D. 0. 

